Driving mechanism for oscillating printing-presses



(No Model.) 2 Sheets-Sheet 1,

P. H. RICHARDS.-

DRIVING MECHANISM FOR OSOILLATING PRINTING .PRESSES.

No. 289,558. Patnted e0. 4, 1883.

(No Model.) 2 SheetsSheet 2.

F. H. RIGHARDS., DRIVING MEGHANISM FOR OSGILLATINGV PRINTING PRESSES.

No. 289,558. Patented Dec. 4, 1883.

UNITED I STATES ATENT OFFICE.

FRANCIS H. RICHARDS, OF SPRINGFIELD, MASSACHUSETTS.

DRIViNG MECHANISM FOR OSCILLATING PRlNTlNG-PRESSES.

SPECIFICATION forming part of Letters Patent No. 289,558, dated December4:, 1883.

Application filed January 18, 1883. (No model.)

To aZZ whom it may concern.-

Be it known that I, FRANCIS H. Rrcrmnns, a. citizen of the UnitedStates, residing at Springfield, in the county of Hampden and 5 State ofMassachusetts, have invented new and useful Improvements in DrivingMechanism for Oscillating Printing-Presses, of which the following is aspecification.

This invention relates to improvements in mechanism for operatingoscillating printing- .presses, the object being to operate a platen ofa press having an oscillating movement by a continuously-rotating shaftcombined with one having a reciprocating rotary motion,

1 with which said platen is directly connected,

thereby obviating the laborious efforts which aredemanded to work saidreciprocating rotary shaft by a foot-treadle directly connectedtherewith.

This invention is in the nature of an improvement on the drivingmechanism shown in connection with the printing-press in my UnitedStates Patent of May 10, 1881, No. 241,421, to which reference may behad.

2 5 In the drawings forming part of this specification, Figure 1 is aside elevation of a printing-press, illustrating the parts of the latteras shown in Fig. 4 of said patent, substantially, and having appliedthereto driving mechanism according to my invention. Fig. 2 is a sectionthrough and below the dotted line as 00, Fig. 1.

In the drawings,B is the leg-frame of the machine, and D the table, onwhich are mounted 3 5 the bed and the platen A, the latter beingconnected with the crank d of the shaft h by the rods cl. Thecrank-shaft his hung in suitable bearings in the frame 13, and hassecured to one end thereof, outside of said frame, the

0 mangle-wheel m. Arotating crank-shaft,

'n, is hung in frame 13, parallel with said shaft b, one of whose boxes,7, has a sliding motion, and its opposite box is so fitted as to permitthe end of shaft a, which is supported by box 7, to have a motion to andfrowhile it rotates. The end of shaft at next to the mangle-wheel mprojects outside of frame B, and has secured thereto the geared pinion9, which engages in the usual manner with said wheel m. The opposite endof shaft nhas secured thereto the balance-wheel 8, and it is providedwith a crank, as shown, with which the foot-treadle 6 is connected bythe pitman 5. y

The operation of my improved driving mechanism, in conjunction with theplaten A of the printing-press, is as follows: The shaft or and thepinion 9 are rotated. by the foottreadle and made to rotate. Theengagement of the pinion 9 with the mangle-wheelm gives the latter andshaft h a reciprocating rotary motion, operating the platen Asubstantially in the manner described relative to the shaft h in saidpatent. The said sliding box '7, supporting the end of shaft n, on whichis pinion 9, slides back and forth as the latter is, by

the action of the mangle-wheel m, forced to engage first with the outerand then with the inner line of gear-teeth on said wheel, or vice versa.

' What I claim as my invention is The combination, with the platen A ofthe printing-press, of the reciprocally-rotating crank-shaft h,connected therewith by the rods (1, the mangle-wheel m, secured to saidshaft, the rotating crank-shaft 12, having the pinion 9 thereon engagingwith said mangle-wheel, and the treadle 6 and pitman 5, substantially asset forth.

FRANCIS H. RICHARDS. Witnesses:

WM. H. CHAPIN, HENRY Knox.

